Current implementation produce incorrect output when Time#usec returns
integer < 100000, because to_s doesn't add leading zeros.

Create a test case for disable_referential_integrity

MemcacheStore: deserialize the entry reading from local_cache when using 

Resubmitting issue #636 as a pull request

Put back Rails.application#env_default and deprecate it [Closes #1922]

Log instrumentation name for exists? queries

Include TagHelper within AssetTagHelper

having() raises NoMethodError: undefined method `empty?' when the given argument does not respond to empty?

having raises NoMethodError: undefined method `empty?' when a Fixnum or Date/Time were passed via varargs

ActiveRecord::Base subclasses should pass ActiveModel::Lint.

Clarify that per-controller asset files are not 'magically' loaded by the controller, but rather need to be required

Ensure that the foreign key gets set when doing record.create_association or record.create_association. Fixes #1960.

Single word change (find -> where) on active record query page

Updated active_record_querying.textile: intro paragraph of 'Conditions' to change 'find method' to 'where method'

Refactor PostgreSQLAdapter a bit

Move the private method #extract_schema_and_table into a separate
Utils module so that it can be tested without resorting to #send.

Properly cache value when it is "false"

replaced some "i += 1" sort of codes with Enumerable#with_index

the sample model has only 9 lines: https://github.com/lifo/docrails/commit/4d4819fb279386570466b2f99254cd77fb71e05c#commitcomment-467295

That integer is rather irrelevant, the only thing that matters is that
it is consistent and with no apparent bias. Zlib.crc32 is 8-10 times
faster than bytes.sum, so use that.